<?php
/**
 * Smarty Internal Plugin Compile If
 *
 * Compiles the {if} {else} {elseif} {/if} tags
 *
 * @package    Smarty
 * @subpackage Compiler
 * @author     Uwe Tews
 */

/**
 * Smarty Internal Plugin Compile If Class
 *
 * @package    Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_If extends Smarty_Internal_CompileBase {

	/**
	 * Compiles code for the {if} tag
	 *
	 * @param array  $args      array with attributes from parser
	 * @param object $compiler  compiler object
	 * @param array  $parameter array with compilation parameter
	 *
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		// check and get attributes
		$_attr = $this->getAttributes($compiler, $args);
		$this->openTag($compiler, 'if', array(1, $compiler->nocache));
		// must whole block be nocache ?
		$compiler->nocache = $compiler->nocache | $compiler->tag_nocache;

		if (!array_key_exists("if condition", $parameter))
		{
			$compiler->trigger_template_error("missing if condition", $compiler->lex->taglineno);
		}

		if (is_array($parameter['if condition']))
		{
			if ($compiler->nocache)
			{
				$_nocache = ',true';
				// create nocache var to make it know for further compiling
				if (is_array($parameter['if condition']['var']))
				{
					$compiler->template->tpl_vars[trim($parameter['if condition']['var']['var'], "'")] = new Smarty_variable(null, true);
				}
				else
				{
					$compiler->template->tpl_vars[trim($parameter['if condition']['var'], "'")] = new Smarty_variable(null, true);
				}
			}
			else
			{
				$_nocache = '';
			}
			if (is_array($parameter['if condition']['var']))
			{
				$_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
				$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . "){?>";
			}
			else
			{
				$_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
				$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . "){?>";
			}

			return $_output;
		}
		else
		{
			return "<?php if ({$parameter['if condition']}){?>";
		}
	}

}

/**
 * Smarty Internal Plugin Compile Else Class
 *
 * @package    Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_Else extends Smarty_Internal_CompileBase {

	/**
	 * Compiles code for the {else} tag
	 *
	 * @param array  $args      array with attributes from parser
	 * @param object $compiler  compiler object
	 * @param array  $parameter array with compilation parameter
	 *
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));
		$this->openTag($compiler, 'else', array($nesting, $compiler->tag_nocache));

		return "<?php }else{ ?>";
	}

}

/**
 * Smarty Internal Plugin Compile ElseIf Class
 *
 * @package    Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_Elseif extends Smarty_Internal_CompileBase {

	/**
	 * Compiles code for the {elseif} tag
	 *
	 * @param array  $args      array with attributes from parser
	 * @param object $compiler  compiler object
	 * @param array  $parameter array with compilation parameter
	 *
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		// check and get attributes
		$_attr = $this->getAttributes($compiler, $args);

		list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));

		if (!array_key_exists("if condition", $parameter))
		{
			$compiler->trigger_template_error("missing elseif condition", $compiler->lex->taglineno);
		}

		if (is_array($parameter['if condition']))
		{
			$condition_by_assign = true;
			if ($compiler->nocache)
			{
				$_nocache = ',true';
				// create nocache var to make it know for further compiling
				if (is_array($parameter['if condition']['var']))
				{
					$compiler->template->tpl_vars[trim($parameter['if condition']['var']['var'], "'")] = new Smarty_variable(null, true);
				}
				else
				{
					$compiler->template->tpl_vars[trim($parameter['if condition']['var'], "'")] = new Smarty_variable(null, true);
				}
			}
			else
			{
				$_nocache = '';
			}
		}
		else
		{
			$condition_by_assign = false;
		}

		if (empty($compiler->prefix_code))
		{
			if ($condition_by_assign)
			{
				$this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
				if (is_array($parameter['if condition']['var']))
				{
					$_output = "<?php }else{ if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . "){?>";
				}
				else
				{
					$_output = "<?php  }else{ if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . "){?>";
				}

				return $_output;
			}
			else
			{
				$this->openTag($compiler, 'elseif', array($nesting, $compiler->tag_nocache));

				return "<?php }elseif({$parameter['if condition']}){?>";
			}
		}
		else
		{
			$tmp = '';
			foreach ($compiler->prefix_code as $code)
				$tmp .= $code;
			$compiler->prefix_code = array();
			$this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
			if ($condition_by_assign)
			{
				if (is_array($parameter['if condition']['var']))
				{
					$_output = "<?php }else{?>{$tmp}<?php  if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . "){?>";
				}
				else
				{
					$_output = "<?php }else{?>{$tmp}<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
					$_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . "){?>";
				}

				return $_output;
			}
			else
			{
				return "<?php }else{?>{$tmp}<?php if ({$parameter['if condition']}){?>";
			}
		}
	}

}

/**
 * Smarty Internal Plugin Compile Ifclose Class
 *
 * @package    Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_Ifclose extends Smarty_Internal_CompileBase {

	/**
	 * Compiles code for the {/if} tag
	 *
	 * @param array  $args      array with attributes from parser
	 * @param object $compiler  compiler object
	 * @param array  $parameter array with compilation parameter
	 *
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		// must endblock be nocache?
		if ($compiler->nocache)
		{
			$compiler->tag_nocache = true;
		}
		list($nesting, $compiler->nocache) = $this->closeTag($compiler, array('if', 'else', 'elseif'));
		$tmp = '';
		for ($i = 0; $i < $nesting; $i++)
		{
			$tmp .= '}';
		}

		return "<?php {$tmp}?>";
	}

}

?>
